books.google.be - The present book explains special relativity and the basics of general relativity from a geometric viewpoint. Space-time geometry is emphasized throughout, and provides the basis of understanding of the special relativity effects of time dilation, length contraction, and the relativity of simultaneity....http://books.google.be/books/about/Flat_and_Curved_Space_Times.html?hl=nl&id=Hos31wty5WIC&utm_source=gb-gplus-shareFlat and Curved Space-Times
